• “The Method of Weighted Residuals and its Relation to Certain Variational Principles for the Analysis of Transport Processes” (With L. E. Scriven) Chemical Engineering Science. 20:395-404. 1965.
• “Galerkin's Method and the Local Potential” (With L. E. Scriven) pp. 291-293, Non-Equilibrium Thermodynamics, Variational Techniques, and Stability, Univ. Chicago. 1966.
• “The Method of Weighted Residuals—A Review” (With L. E. Scriven) Applied Mechanics Review. 19:735-748. September 1966.
• “Upper and Lower Bounds for Solutions to the Transport Equation.” (With L. E. Scriven) American Institute of Chemical Engineers Journal. 12:1151-1158. November 1966.
• “On the Search for Variational Principles.” (With L. E. Scriven) International Journal of Heat and Mass Transfer. 10:799-821. June 1967.
• “The Galerkin Method Applied to Convective Instability Problems.” Journal of Fluid Mechanics. 33:201-208. 1968. pdf version, Copyright, Cambridge University Press
• “Applications of the Method of Weighted Residuals and Variational Methods, I, II.” British Chemical Engineering. 14:53-57, 179-182. 1969.
• “Surface Tension Driven Oscillatory Instability in a Rotating Fluid Layer.” (With G. A McConaghy) Journal of Fluid Mechanics. 39:49-55. 1969. pdf version, Copyright, Cambridge University Press
• “The Effect of Property Variations on the Convective Instability of Gases.” (With D. S. Roja) Am. Inst. Chem. Eng. J. 16:876-877. 1970.
• “Convergence of the Galerkin Method for Nonlinear Problems Involving Chemical Reaction,” SIAM Journal on Numerical Analysis 8:316-324. 1971.
• “On the Use of the Integral Method for Flow of Power-Law Fluids.” (With Mohamed El Defrawi) Am. Inst. Chem. Eng. J. 18:251-253. 1972.
• “Existence of Variational Principles for the Navier-Stokes Equation,” Physics of Fluids. 15:963-967. 1972.
• “Error Bounds for Approximate Solutions to Nonlinear Ordinary Differential Equations” (With Noble B. Ferguson) Am. Inst. Chem. Eng. J. 18:1053-1059. 1972.
• “Weighted Residual Methods and Their Relation to Finite Element Methods in Flow Problems,” pp. 13-19 in “Finite Element Methods in Flow Problems,” Ed: J. T. Oden, O. C. Zienkiewiz, R. H. Gallagher, C. Taylor, Univ. of Alabama Press. 1974.
• “Solution of the Transport Equations Using a Moving Coordinate System,” (with O. K. Jensen). Adv. Water Res. 3. pp. 9-18. 1980.
• “On the Proper Boundary Conditions for the Thermal Entry Problem” (With M. W. Chang). Int. J. Num. Methods Eng. 15. pp. 935-942. 1980.
• “Oscillation Limits for Weighted Residual Methods Applied to Convection-Diffusion Problems” (with O. K. Jensen). Int. J. Num. Methods Eng. 15:1681-1690. 1980.
• “Infinite Possibilities for the Finite Element.” Chem. Eng. Ed. 15. pp. 20-25. 1981.
• “Variational Principles for Heat Transfer,” in Numerical Properties and Methodologies in Heat Transfer. pp. 17-31. 1983.
• “This Week's Citation Classic,” Citation Classics, Number 40, Oct. 3, 1983.